Ticket #31474: 31474.patch

src/wp-admin/includes/class-wp-press-this.php

@@ -508 +508 @@
                 if ( ! empty( $styles ) ) {
                         $styles .= ',';
                 }
-                return $styles . admin_url( 'css/press-this-editor.css' );
+
+                $press_this = admin_url( 'css/press-this-editor.css' );
+                if ( is_rtl() ) {
+                        $press_this = str_replace( '.css', '-rtl.css', $press_this );
+                }
+
+                return $styles . $press_this;
         }
 
         /**